VELOSIT® SL 502
Universal Self Leveling Underlayment
Product Description
VELOSIT® SL 502 is a cementitious self leveling underlayment for concrete substrates. It creates a very smooth surface for coatings and floor coverings. VELOSIT® SL 502 is a shrinkage compensated cementitious self leveling underlayment with very quick strength development. VELOSIT® SL 502 binds the mixing water very fast allowing a very short wait time before it can be covered. VELOSIT® SL 502 creates a well bonded and very smooth layer on the substrate. VELOSIT® SL 502 is the result of many years in the field testing and research. VELOSIT® SL 502 is a shrinkage compensated cementitious self leveling underlayment with very quick strength development.
Typical Applications
- Interior and exterior use
- Suitable for permanently water immersed applications
- Leveling of concrete slabs and floors
- Cosmetic repair of surface defects on concrete floors
- Structural repair of concrete
- Application thickness from 3 mm to 38 mm
- Self leveling screed
- Floor heating systems
- As a binder for terrazzo floors
Features
- Ready for covering with ceramic tiles after 4 hours, for moisture sensitive floor coverings after 16 hours
- Open to foot traffic after 3 hours
- Excellent flow with long slump life
- Final strength of more than 50 MPa after 28 days
- Good resistance against CO2 and Chloride penetration due to a very tight pore structure
- Excellent water resistance, no strength loss under water
- Good weathering resistance
- Good sulfate resistance
- Fast air release with minimal requirement for agitation
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